new file mode 100644
--- /dev/null
+++ b/packages/io/disk/current/include/disk.h
@@ -0,0 +1,169 @@
+#ifndef CYGONCE_DISK_H
+#define CYGONCE_DISK_H
+// ====================================================================
+//
+//      disk.h
+//
+//      Device I/O 
+//
+// ====================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+// Copyright (C) 2003 Savin Zlobec 
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+// ====================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     savin 
+// Original data: gthomas
+// Date:          2003-06-09
+// Purpose:       Internal interfaces for disk I/O drivers
+// Description:
+//
+//####DESCRIPTIONEND####
+//
+// ====================================================================
+
+// Disk I/O interfaces
+
+#include <pkgconf/system.h>
+#include <pkgconf/io_disk.h>
+
+#include <cyg/infra/cyg_type.h>
+#include <cyg/io/io.h>
+#include <cyg/io/diskio.h>
+#include <cyg/hal/drv_api.h>
+
+typedef struct disk_channel disk_channel;
+typedef struct disk_funs    disk_funs;
+
+// Pointers into upper-level driver
+typedef struct {
+    
+    // Initialize the disk 
+    cyg_bool (*disk_init)(struct cyg_devtab_entry *tab);
+
+    // Disk device has been connected
+    Cyg_ErrNo (*disk_connected)(struct cyg_devtab_entry *tab,
+                                cyg_disk_identify_t     *ident);
+
+    // Disk device has been disconnected
+    Cyg_ErrNo (*disk_disconnected)(struct cyg_devtab_entry *tab);
+
+    // Lookup disk device
+    Cyg_ErrNo (*disk_lookup)(struct cyg_devtab_entry **tab,
+                             struct cyg_devtab_entry  *sub_tab,
+                             const char               *name);
+} disk_callbacks_t;
+
+#define DISK_CALLBACKS(_l,                              \
+                       _init,                           \
+                       _connected,                      \
+                       _disconnected,                   \
+                       _lookup)                         \
+disk_callbacks_t _l = {                                 \
+    _init,                                              \
+    _connected,                                         \
+    _disconnected,                                      \
+    _lookup                                             \
+};
+
+extern disk_callbacks_t cyg_io_disk_callbacks;
+
+// Private data which describes this channel
+struct disk_channel {
+    disk_funs               *funs;
+    disk_callbacks_t        *callbacks;
+    void                    *dev_priv;    // device private data
+    cyg_disk_info_t         *info;        // disk info 
+    cyg_disk_partition_t    *partition;   // partition data 
+    cyg_bool                 mbr_support; // true if disk has MBR
+    cyg_bool                 valid;       // true if device valid 
+    cyg_bool                 init;        // true if initialized
+};
+
+// Initialization macro for disk channel
+#define DISK_CHANNEL(_l,                                              \
+                     _funs,                                           \
+                     _dev_priv,                                       \
+                     _mbr_supp)                                       \
+cyg_disk_info_t _l##_disk_info;                                       \
+disk_channel _l = {                                                   \
+    &(_funs),                                                         \
+    &cyg_io_disk_callbacks,                                           \
+    &(_dev_priv),                                                     \
+    &(_l##_disk_info),                                                \
+    NULL,                                                             \
+    _mbr_supp,                                                        \
+    false,                                                            \
+    false                                                             \
+};
+
+// Low level interface functions
+struct disk_funs {
+
+    // Read block data into buf
+    Cyg_ErrNo (*read)(disk_channel *priv, 
+                      void         *buf, 
+                      cyg_uint32    len,
+                      cyg_uint32    block_num);
+    
+    // Write block data from buf
+    Cyg_ErrNo (*write)(disk_channel *priv, 
+                       const void   *buf, 
+                       cyg_uint32    len,
+                       cyg_uint32    block_num);
+    
+    // Get hardware configuration
+    Cyg_ErrNo (*get_config)(disk_channel *priv, 
+                            cyg_uint32    key, 
+                            const void   *xbuf, 
+                            cyg_uint32   *len);
+    
+    // Set hardware configuration
+    Cyg_ErrNo (*set_config)(disk_channel *priv, 
+                            cyg_uint32    key, 
+                            const void   *xbuf, 
+                            cyg_uint32   *len);
+};
+
+#define DISK_FUNS(_l,_read,_write,_get_config,_set_config)           \
+disk_funs _l = {                                                     \
+  _read,                                                             \
+  _write,                                                            \
+  _get_config,                                                       \
+  _set_config                                                        \
+};
+
+extern cyg_devio_table_t cyg_io_disk_devio;
+
+#endif // CYGONCE_DISK_H